WEI Xin,LI Jianshe,GAO Yanming.Study on the Cooling Capacity With Large Span Double Film Arch of Plastic Greenhouse in Summer[J].Northern Horticulture,2016,40(10):45-51.[doi:10.11937/bfyy.201610012]
大跨度双膜双拱塑料大棚夏季降温能力测试研究
- Title:
- Study on the Cooling Capacity With Large Span Double Film Arch of Plastic Greenhouse in Summer
- 文献标志码:
- A
- 摘要:
- 为探索新型热镀锌大跨度双膜双拱结构塑料大棚环境优势，针对夏季对降温效果的需求，以10 m跨单膜大棚为对照，对5个跨度分别为20、16、12、10、8 m的双膜塑料大棚运用ZWSN-C-A无线多功能采集器进行了环境测试分析。结果表明：8、16、20 m跨度塑料大棚可降低空气温度1.15、0.94、0.59 ℃；同时可降低土壤温度2.98、2.32、3.08 ℃。12 m跨度塑料大棚相较于其它4个跨度空气湿度值小，为28.08%，其余5个大棚湿度无明显差异，均在47%左右。对照大棚光照强度明显强于双膜大棚，但10、16 m跨度塑料大棚的透光率较其它跨度大，平均比8 m跨度高2.36、2.08 klx。10、12、16 m跨度大棚可保持较高二氧化碳浓度。综合以上5个环境因子，16 m跨度塑料大棚除了能保持较高光照强度和二氧化碳浓度外，在降温、保湿方面具有较大优势，在夏季较其余5个大棚更具有推广性。
- Abstract:
- In order to explore the environmental advantages of a new type large span double film arch of plastic greenhouse with hot dip galvanized steel，the requirements of the cooling effect in summer were analyzed.With 10 m span single film plastic greenhouse as the control，16 m，12 m，10 m，8 m，20 m as test objects，ZWSN-C-A were used to measure the environment performance.The results showed that 8 m，16 m，20 m large span plastic greenhouse had less air temperature 1.15 ℃，0.94 ℃，0.59 ℃，which reduced soil temperature 2.98 ℃，2.32 ℃，3.08 ℃.12 m large span greenhouse compared to other four span of air humidity is minimum，for about 28.08%.Remaining other five greenhouse of humiditythat have no obvious difference，which were about 47%.Light intensity of the control greenhouse was significantly stronger than the double film shed，but the transmittance of 10 m，16 m span plastic greenhouse was more larger than other three ones，which were more 2.36 klx，2.08 klx than 8 m greenhouse.Maintaining a high carbon dioxide concentration was 10 m，12 m，16 m double film greenhouse.Integrated above five environmental factors，16 m span plastic greenhouse had the higher light intensity and carbon dioxide concentration，in addition to in the cooling，moisture had a greater advantage in the summer to compare with the rest of the five greenhouses，which was more promotional.
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备注/Memo
第一作者简介：魏鑫（1991-），女，甘肃兰州人，硕士研究生，研究方向为蔬菜栽培与生理。E-mail：471722064@qq.com. 责任作者：高艳明（1963-），女，宁夏石嘴山人，硕士，教授，现主要从事设施蔬菜无土栽培与营养施肥等研究工作。E-mail：myangao@163.com. 基金项目：国家公益性行业（农业）科研专项重大资助项目（201203002）。